English Comprehension PYQs

The correct answer is 1 and 2 only

Key Points

• The Jorwe culture predominantly covered what is now modern Maharashtra, excluding the coastal region known as the Konkan district. This coverage highlights its extensive influence across the interior regions but not in maritime areas. Hence, statement 1 is correct.
• Archaeological evidence suggests that the Pravara-Godavari valleys were a central area for the Jorwe culture, indicating a concentration of settlements and cultural activities. This area's geographic and environmental features likely supported the sustenance and growth of the culture. Hence, statement 2 is correct.
• The assertion that large sites of the Jorwe culture show evidence of shifting agriculture is not strongly supported by the archaeological record, which instead points to more established forms of agriculture. The absence of clear evidence for shifting cultivation practices among the large, settled communities of this culture negates this statement. Hence, statement 3 is incorrect.

Additional Information

• The Jorwe culture, identified mainly through its distinctive red and black pottery, is dated from around 1400 to 700 BCE. It marks a significant phase in the early history of peninsular India, transitioning from the later prehistoric to the early historic periods.
• Key sites like Daimabad not only provide evidence of well-organized settlements but also of socio-political structures and metallurgy, especially with respect to iron, which underlines technological advancements during this period.
• The culture’s spread and societal organization suggest a complex agrarian economy supported by irrigation and crop rotation, rather than primitive shifting agriculture. This reflects a more advanced stage of agricultural development aligned with urbanization trends in ancient India.
• Preservation efforts for archaeological sites associated with the Jorwe culture are crucial for understanding the cultural heritage of Maharashtra. These efforts are often governed by policies and guidelines from bodies like the Archaeological Survey of India, under the purview of the Ministry of Culture.
• Research into the Jorwe culture helps scholars trace the developmental trajectory of society in the Deccan region of India, illustrating the growth from small, agrarian communities to more complex societies with significant craft specialization and trade practices.

The Correct answer is 2 only.

Key Points

• The Wholesale Price Index (WPI) measures the changes in the prices of goods sold and traded in bulk by wholesale businesses to other businesses.
• The WPI is a crucial indicator of inflation and is used by the government to formulate policies related to the economy.
• The WPI consists of three major groups: Primary Articles, Fuel and Power, and Manufactured Products.
• Statement 1: Fuel and power have higher weightage in WPI than that of primary articles.
• The WPI assigns different weightages to each of its components to reflect their relative importance in the economy.
• Primary Articles include items like food, non-food agricultural products, and minerals.
• Fuel and Power cover coal, electricity, and mineral oils.
• The weightage of Primary Articles is approximately 22.62%.
• The weightage of Fuel and Power is approximately 13.15%.
• Hence, Fuel and Power do not have a higher weightage than Primary Articles. Hence, statement 1 is incorrect.
• Statement 2: Weightage of manufactured products in WPI is higher than that of fuel and power.
• Manufactured Products include a wide range of items such as textiles, chemicals, machinery, and metals.
• The weightage of Manufactured Products in the WPI is approximately 64.23%.
• This is significantly higher than the weightage of Fuel and Power, which is 13.15%.
• Thus, the weightage of Manufactured Products is indeed higher than that of Fuel and Power. Hence, statement 2 is correct.

 Additional Information

• The Wholesale Price Index (WPI) is an important economic indicator in India, helping to track inflation at the wholesale level.
• Primary Articles have the second-highest weightage in the WPI, highlighting their importance in the economy.
• Fuel and Power are crucial for industrial and economic activities, hence their inclusion in the WPI.
• Manufactured Products dominate the WPI due to their significant contribution to the economy and their extensive range of goods.
• The WPI is used by policymakers, economists, and businesses to make informed decisions regarding pricing, production, and investment.

The correct answer is  1, 2 and 3.

Key Points

• The G20 Summit under India's Presidency in 2023 aimed to address several global challenges and set ambitious agendas in various domains, including economic growth, sustainable development, and gender equality.
• Green development was a pivotal focus, aiming to promote sustainable practices, reduce carbon emissions, and enhance renewable energy usage, reflecting the global urgency to combat climate change and promote environmental sustainability. Hence, statement 1 is correct.
• Accelerating progress on Sustainable Development Goals (SDGs) was another crucial objective. The SDGs, adopted by all United Nations Member States in 2015, are a universal call to action to end poverty, protect the planet, and ensure that by 2030 all people enjoy peace and prosperity. The G20 Summit aimed to foster international cooperation and develop strategies to achieve these goals more effectively and swiftly. Hence, statement 2 is correct.
• Women-led development was emphasized as a key objective, highlighting the importance of gender equality and the empowerment of women and girls as central to sustainable development. This approach not only supports the achievement of SDG 5 (Gender Equality) but also recognizes the role of women as drivers of growth and development. Hence, statement 3 is correct.

Additional Information

• The G20 (Group of Twenty) is an international forum for the governments and central bank governors from 19 countries and the European Union. It was founded in 1999 after the Asian financial crisis as a forum for finance ministers and central bank governors to discuss global financial and economic issues.
• The G20 plays a significant role in global economic governance, with members representing around 85% of global GDP, over 75% of global trade, and about two-thirds of the world's population.
• The summit's focus on green development aligns with global efforts to transition to sustainable energy sources and reduce reliance on fossil fuels, critical to mitigating the impacts of climate change.
• The emphasis on accelerating SDG progress is crucial as the 2030 deadline approaches, with many areas requiring significant action to meet the targets. This includes addressing challenges such as poverty, inequality, climate change, environmental degradation, peace, and justice.
• The focus on women-led development recognizes the transformative impact of enhancing women's economic participation, leadership, and rights, which can lead to more inclusive and sustainable outcomes.

The correct answer is 1 and 2

Key PointsRana Kumbha of Mewar

• Rana Kumbha, also known as Maharana Kumbhakarna, was a ruler of Mewar, a region in the present-day state of Rajasthan, India. He is known for his contributions to art, architecture, and music, as well as his military victories.
• He wrote a commentary on Jayadeva's Gitagovinda. The Gitagovinda is a Sanskrit poem composed by the 12^th-century Indian poet, Jayadeva, and is considered a significant text in the Bhakti movement of Hinduism. Rana Kumbha's commentary on this text highlights his scholarly interest and patronage of the arts. Hence, statement 1 is correct.
• He wrote four dramas in which he is said to have made use of four provincial languages. This fact underscores Rana Kumbha's linguistic abilities and his efforts to promote cultural diversity through literature. It reflects the cosmopolitan nature of his court and his support for regional languages. Hence, statement 2 is correct.
• The Kirti Stambh (Tower of Fame) in Chittorgarh is often confused with the Vijay Stambh (Tower of Victory), which is directly associated with Rana Kumbha.
• Here’s the distinction and their relationship:
• Kirti Stambh:
• Built in the 12^th century by Jain merchant Jijaji Rathod to honor Adinath, the first Jain Tirthankara.
• It predates Rana Kumbha's reign and is dedicated to Jainism, with no direct connection to Rana Kumbha.
• Vijay Stambh:
• Built in the 15^th century by Rana Kumbha to commemorate his victory over the Sultan of Malwa, Mahmud Khilji, in 1440 CE.
• It is a symbol of valor and Rajput pride, showcasing Hindu gods, battle scenes, and inscriptions. Hence, statement 3 is incorrect.

Additional Information

• Chittorgarh Fort is one of the largest forts in India and is a UNESCO World Heritage Site. It has witnessed numerous historical events and battles and is a symbol of Rajput valor and resistance.
• Gitagovinda is celebrated for its expression of devotion to Lord Krishna and is a key work in the development of the Bhakti tradition in Hinduism. Its influence extends beyond religious texts and into various forms of art and culture in India.
• Rana Kumbha's reign is often remembered for its patronage of the arts, including music and literature, which led to the flourishing of Rajasthani culture. His contributions have left an indelible mark on the cultural landscape of India.
• His military campaigns not only expanded the territory of Mewar but also secured its borders against various adversaries, making it a formidable Rajput state during his reign.

The correct answer is  1 only.

Key PointsMadurai and the Pandya Kingdom

• Madurai, historically significant as the capital of the Pandya Kingdom, has been a pivotal city in the cultural, economic, and architectural development of South India.
• The description of Madurai as a large grand city enclosed by walls on three sides and the Vaigai river on the fourth side in Maduraikkanchi highlights its strategic design and the importance of natural resources in urban planning during ancient times.
• This depiction underscores the city’s fortified nature and its reliance on the Vaigai river for sustenance and protection. Hence, statement 1 is correct.
• Although Madurai is renowned for its rich textile history, the specific mention of it as a centre for fine cotton textiles in the Arthashastra is not directly attributed to ancient texts but rather inferred from its historical significance in textile production.
• This statement, while reflecting the city's long-standing association with textile craftsmanship, lacks direct evidence from the Arthashastra. Hence, statement 2 is incorrect.
• Madurai's recognition as a major craft centre in various literary sources is consistent with historical accounts of its thriving markets and artisan communities. However, the specificity of these sources and their direct correlation to Madurai's diverse crafts other than textiles is broad and encompasses various periods and contexts.
• While it is true that Madurai was a hub for crafts, the general statement about other literary sources requires more specific context to be fully validated. Hence, statement 3 is incorrect.

Additional Information

• The Pandya Kingdom was one of the longest-ruling dynasties in the history of southern India with Madurai serving as its capital. The city's historical significance is evident in its rich architectural heritage, including the famous Meenakshi Amman Temple.
• The Vaigai River not only provided natural protection but also supported agriculture, which was a cornerstone of the ancient economy in the region.
• Madurai's legacy in textile production is well-documented, with the city being famous for its silk sarees and cotton fabrics, reflecting a tradition that has survived through centuries.
• The city's vibrant culture is immortalized in the Tamil epic Silappathikaram, which offers insights into the ancient Tamil way of life, including its crafts, festivals, and societal structures.

Highlighting Madurai’s historical importance provides a window into the social, economic, and cultural fabric of ancient Tamil society, showcasing the city’s enduring legacy as a center of trade, craftsmanship, and literature.

The correct answer is 1, 2, 3, 4 and 5.**

Key Points

• The extent of tariff reduction vis-à-vis MFN (Most Favoured Nation) tariffs is a critical factor in determining the growth of exports under Free Trade Agreements (FTAs). Tariff reduction can make exports more competitive in the markets of FTA partners.
• Hence, statement 1 is correct.
• The extent of relaxation in terms of rules of origin: Easier rules of origin under FTAs can facilitate Indian exporters in qualifying for preferential treatment, thereby enhancing exports.
• Hence, statement 2 is correct.
• The extent of relaxation in sanitary and phytosanitary measures can also influence export growth. Relaxing these measures can reduce barriers to trade for agricultural and food products.
• Hence, statement 3 is correct.
• The level of infrastructure in India is crucial for export growth. Efficient ports, roads, and logistics services reduce the cost and time of exporting goods, making Indian exports more competitive.
• Hence, statement 4 is correct.
• Income in nations with which India enters into FTAs: Higher income levels in partner countries can increase the demand for Indian exports, leading to growth in export volumes.
• Hence, statement 5 is correct.

Additional Information

• Most Favoured Nation (MFN) is a treatment accorded by one nation to another in international trade. It means that the country which is the recipient of this treatment must nominally receive equal trade advantages as the "most favoured nation" by the country granting such treatment.
• Traders in the MFN country get the best treatment in terms of tariffs and trade barriers that the granting country offers to any of its trading partners.
• Rules of Origin are the criteria needed to determine the national source of a product. Their importance is derived from the fact that duties and restrictions in several cases depend upon the source of imports.
• Relaxing these rules under FTAs allows for easier qualification of products for benefits, promoting trade between the parties involved.
• Sanitary and Phytosanitary (SPS) measures are applied to protect human, animal or plant life or health from risks arising from the introduction, establishment and spread of pests, diseases, disease-carrying organisms or disease-causing organisms and from additives, contaminants, toxins or disease-causing organisms in foods, beverages or feedstuffs.
• Relaxation of SPS measures in FTAs can significantly enhance market access for agricultural products.
• Infrastructure development plays a pivotal role in boosting a country's export potential by reducing logistical costs and enhancing the efficiency of trade operations.

The correct answer is Flavi-ribo virus.

Key Points

• Dengue fever is caused by a virus belonging to the Flavivirus genus, which is part of the larger Flaviviridae family that includes several other significant viruses.
• This virus is transmitted to humans through the bites of infected Aedes mosquitoes, primarily Aedes aegypti, but also Aedes albopictus.
• The Flavivirus genus also includes other notable pathogens such as the West Nile virus, Yellow fever virus, and the Zika virus, all of which are transmitted by mosquitoes.
• The term “flavi” in Latin means “yellow,” reflecting the Yellow fever virus's jaundice symptom, another disease caused by a flavivirus.
• Dengue virus has four distinct serotypes (DENV-1, DENV-2, DENV-3, and DENV-4), and infection with one serotype provides lifelong immunity against that specific serotype but not the others.
• Infection can lead to a range of conditions from mild fever to severe forms like dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS).

 Additional Information

• Adenovirus: A type of DNA virus that causes a range of illnesses, from mild respiratory infections to gastroenteritis.
• Vaccinia virus: Used in the smallpox vaccine, this virus is a member of the poxvirus family and is not naturally occurring in humans but developed for vaccination purposes.
• Nipah virus: A zoonotic virus transmitted from animals to humans, connected to severe diseases in both animals and humans, notably respiratory and neurological diseases. It has been identified as a prioritized virus by the WHO due to its potential to cause epidemics.

The correct answer is Rajaraja I.

Key Points

• Buddhist Vihara in Negapatnam
• Rajaraja I, the Chola king, encouraged Sri Mara Vijayottungavarman, the Sailendra ruler of Sri Vijaya, to build a Buddhist Vihara at Nagapattinam [1].
• This vihara was established during his reign as part of his support for Buddhist institutions, albeit mainly for political and strategic reasons rather than religious.[1]

Additional Information

• Chola Kings and Their Contributions
• Parantaka I
• Known for his military conquests and administrative reforms but not specifically linked to the building of a Buddhist Vihara in Negapatnam.
• Rajendra I
• He is famous for his naval expedition to Southeast Asia and the successful conquest of Srivijaya, but he is not connected with the Buddhist Vihara construction at Negapatnam.
• Kulottunga I
• He was known for his administrative capabilities and extensive building projects, though not specifically related to the Buddhist Vihara at Nagapattinam.
• Context of Rajaraja I's Reign
• Rajaraja I (reigned 985–1014 CE) was a powerful Chola king whose reign marked significant military, cultural, and architectural achievements.
• His support for building a Buddhist Vihara in Sri Vijaya's territory facilitated diplomatic relations with the Sailendra dynasty.

The correct answer is 1 only.

Key PointsSawai Jai Singh's Astronomical Work

• Sawai Jai Singh was an Indian king and a keen astronomer who significantly contributed to the field of astronomy in the early 18^th century.
• He was aware of the advancements in European astronomy and sought to integrate these findings with Indian astronomical science.
• Statement 1: Sawai Jai Singh indeed learned about the accuracy of European astronomical observations. He obtained Philippe de La Hire's tables, which were a significant European astronomical work of the time. These tables allowed him to reproduce a refraction table that helped in making more accurate astronomical observations. Hence, statement 1 is correct.
• Statement 2: While Sawai Jai Singh and his astronomers made several advancements in astronomical instruments and observatories, there is no historical evidence suggesting they developed a telescope specifically for observing the lunar phases of Venus. The primary contributions were more towards the construction of large-scale astronomical instruments and observatories, such as the Jantar Mantar. Hence, statement 2 is incorrect.

Additional Information

• Jantar Mantar: The observatories built by Sawai Jai Singh, known as Jantar Mantar, are located in five cities of India - Jaipur, New Delhi, Ujjain, Mathura, and Varanasi. These observatories house various architectural and astronomical instruments.
• Integration of Astronomical Sciences: Sawai Jai Singh's efforts were directed towards integrating Indian astronomical methods with the more advanced European techniques of his time, thereby contributing to the enhancement of accuracy in astronomical observations and calculations in India.
• Philippe de La Hire: A French mathematician and astronomer whose tables Sawai Jai Singh used. De La Hire's work was crucial in the development of the lunar theory and the prediction of eclipses, which significantly impacted the accuracy of astronomical observations worldwide.
• Astronomical Instruments: Among the instruments Sawai Jai Singh constructed were the Samrat Yantra, the largest sundial in the world, and various other instruments for measuring time, predicting eclipses, and tracking celestial bodies' movements.
• These contributions by Sawai Jai Singh highlight the rich heritage of astronomical research and the integration of different cultures in the pursuit of scientific knowledge.

The correct answer is Al2O3***.***

Key PointsAmphoteric Oxides

• Amphoteric oxides are oxides that can act as both acids and bases. They can react with both acids and bases to produce salts and water.
• Aluminum oxide (Al2O3) is a classic example of an amphoteric oxide. It reacts with acids to form aluminum salts and water and with bases to form salts and water as well.
• For example, when Al2O3 reacts with hydrochloric acid (HCl), it forms aluminum chloride (AlCl₃) and water. When it reacts with sodium hydroxide (NaOH), it can form sodium aluminate (NaAlO₂) and water.
• This dual behavior is due to the electronic structure of the aluminum ion, which allows it to form covalent bonds with oxygen in acidic and basic environments.
• Magnesium oxide (MgO) and sodium oxide (Na₂O) are primarily basic oxides, while P₄O₁₀ is an acidic oxide, not demonstrate amphoteric properties.

Hence, the correct option is Al2O3**.**

Additional Information

• Basic oxides: These are oxides that react with acids to form salt and water. Examples include CaO (calcium oxide), which reacts with HCl to form calcium chloride and water.
• Acidic oxides: Oxides that react with bases to form salts and water. An example is SO₃ (sulfur trioxide), which reacts with NaOH to form sodium sulfate and water.
• Applications of Al₂O₃: Aluminum oxide has wide applications due to its physical and chemical properties. It is used as an abrasive in sandpapers, as a refractory material due to its high melting point, and in the production of aluminum metal.

The correct answer is Platelets.

Key PointsBlood Clotting Factors

• Blood clotting factors are critical components in the process of blood coagulation, which prevents excessive bleeding when the vascular system is injured.
• Platelets, also known as thrombocytes, are the cellular components of the blood primarily responsible for the release of blood clotting factors.
• Upon vascular injury, platelets adhere to the site of injury, activate, aggregate, and form a plug. During this process, they release clotting factors that further strengthen the clot.
• Clotting factors include various proteins, such as fibrinogen (Factor I), prothrombin (Factor II), and Factor VIII, among others, which work in a cascade to form a stable blood clot.
• Platelets contain granules that, when activated, secrete substances critical for coagulation and wound healing, such as calcium ions, which are essential for the clotting process.
• While RBCs (Red Blood Cells), Eosinophils, and Monocytes play roles in oxygen transport, immune response, and phagocytosis respectively, they do not release clotting factors.

Hence, the statement that platelets release blood clotting factors is correct.

Additional Information

• Coagulation Cascade: The process of blood clotting involves a series of enzymatic reactions that lead to the conversion of soluble fibrinogen into insoluble fibrin, forming a stable clot. This cascade is divided into three pathways: the intrinsic, extrinsic, and common pathways.
• Role of Calcium in Coagulation: Calcium ions (Ca²⁺) are vital for the coagulation cascade, acting as a cofactor for various clotting factors and enabling their proper function during the formation of a blood clot.
• Hemophilia: A genetic disorder characterized by the deficiency of clotting factors, leading to prolonged bleeding. Hemophilia A involves a deficiency of Factor VIII, whereas Hemophilia B (Christmas disease) involves a deficiency of Factor IX.
• Thrombocytopenia: A condition characterized by a low platelet count, leading to impaired clot formation and increased bleeding risk. It highlights the essential role of platelets in hemostasis and wound healing processes.
• Anticoagulants: Medications such as warfarin or heparin that work by inhibiting the action of clotting factors, used therapeutically to prevent blood clots in conditions like deep vein thrombosis (DVT), pulmonary embolism (PE), and atrial fibrillation.

The correct answer is Siddheshvara.

Key Points

• King Krishnadevaraya was a prominent ruler of the Vijayanagara Empire in South India, reigning from 1509 to 1529.
• He was known for his patronage of literature, art, and culture, and his court was adorned with many great poets and scholars.
• Timmana, Dhurjati, and Mallana were among the celebrated poets in his court, who contributed significantly to Telugu literature.
• Siddheshvara was not a known court poet of Krishnadevaraya. His name does not appear among the prominent literary figures patronized by the king.

 Additional Information

• Timmana
• Also known as Tenali Ramakrishna, he was a famous poet and scholar in the court of Krishnadevaraya.
• He authored the work Parijatapaharanamu, a popular piece in Telugu literature.
• Dhurjati
• Dhurjati was another eminent poet in Krishnadevaraya's court, known for his devotional works dedicated to Lord Shiva.
• His famous works include Sri Kalahasteeswara Mahatyam.
• Mallana
• Mallana was a celebrated poet and scholar who was part of the "Ashtadiggajas," the eight great poets in Krishnadevaraya's court.
• He contributed significantly to the literary and cultural heritage of the Vijayanagara Empire.

The correct answer is Raja Man Singh of Gwalior.

Key PointsMan Kautuhal and its Historical Context

• Man Kautuhal is a significant work related to music, showcasing the rich cultural and musical heritage of India during the historical period it was created.
• It was prepared under the aegis of Raja Man Singh of Gwalior, a fact that highlights the patronage of music and arts by the rulers of that era.
• Raja Man Singh of Gwalior was known for his contribution to the arts, especially music, during his reign. His support played a crucial role in the preservation and development of classical Indian music.
• The involvement of royal patrons like Raja Man Singh in the promotion of music and arts significantly influenced the evolution of Indian classical music, leading to the creation of various ragas and musical compositions.
• This work is an example of how royal patronage was essential for the flourishing of arts and culture in India, providing musicians and artists with the necessary resources and audience to hone and showcase their talents.

Hence, the Man Kautuhal was prepared under the aegis of Raja Man Singh of Gwalior is correct.

Additional Information

• In the context of Indian history, royal patronage played a pivotal role in the development and preservation of various forms of art, including music, dance, painting, and literature.
• Raja Man Singh of Gwalior, among others, is remembered for his significant contributions towards the enrichment of Indian culture. His reign is often cited as a golden period for the arts in Gwalior, a city that still holds an important place in India's musical landscape.
• The tradition of patronage ensured the survival and growth of classical arts, which might have otherwise been lost or diminished in significance. This system allowed for the creation of comprehensive works like Man Kautuhal, which serve as important historical documents today.
• Understanding the context and content of works like Man Kautuhal is crucial for students of musicology and history as it provides insights into the musical theories, practices, and preferences of the time.
• The legacy of Raja Man Singh and his contributions to music are still studied and celebrated, underlining the lasting impact of royal patronage on the cultural heritage of India.

Highlighting the importance of Raja Man Singh of Gwalior and his work Man Kautuhal not only helps in appreciating the rich musical heritage of India but also in understanding the role of patronage in the arts.

The correct answer is butane > cyclohexane > pentane > hexane.**

Key Points

To determine the correct order of octane numbers among butane, pentane, hexane, and cyclohexane, let's consider the general properties and typical octane ratings for each:

• Butane (n-butane) - Typically, butane has a relatively high octane rating. For instance, n-butane has an octane rating of around 94 (Research Octane Number, RON).
• Pentane (n-pentane) - Pentane usually has a lower octane rating compared to butane. n-Pentane, for example, has an octane rating of around 62.
• Hexane (n-hexane) - Hexane's octane rating is generally lower than that of pentane, with n-hexane typically around 25.
• Cyclohexane - Cyclohexane tends to have a lower octane rating than the other listed alkanes. It's typically used as a reference with a very low octane rating, around 82.

Given this information, the correct order of octane numbers from highest to lowest among these compounds is:

• Butane (highest)
• Cyclohexane
• Pentane
• Hexane (lowest)

Thus, the correct answer, based on the typical octane ratings, would be: 3) butane > cyclohexane > pentane > hexane

Additional Information

• The concept of octane rating was developed by chemist Russell Marker in the 1920s. The octane number is a measure of a fuel's ability to resist "knocking" or "pinging" during combustion, caused by the air/fuel mixture detonating prematurely in the engine.
• In the context of engine performance, fuels with higher octane numbers are preferred for high-performance engines to prevent knocking, which can lead to engine damage over time.
• The octane rating of a fuel can be increased by refining processes such as isomerization, which increases the proportion of branched-chain hydrocarbons, or by adding anti-knock agents like lead tetraethyl (although its use has been greatly reduced for environmental reasons).

The correct answer is the aorta and main arteries

Key PointsPulse and its Mechanism

• The pulse is a rhythmic throbbing felt in the arteries, which corresponds to the beating of the heart.
• The pulse, which is commonly felt at various points in the body like the wrist or neck, is due to the rhythmic contraction and relaxation of the arteries
• Arteries are blood vessels that carry oxygen-rich blood from the heart to various parts of the body. Their elastic walls allow them to expand and contract in response to the pressure volumes exerted by the blood pumped from the heart.
• The elasticity and muscular structure of the arteries help dampen the pressure wave, thereby facilitating continuous blood flow even when the heart is at rest between beats.
• When the heart's chambers contract (systole), blood is ejected into the aorta and main arteries, causing a rise in arterial pressure and expansion of the artery walls.
• The relaxation phase (diastole) of the heart's chambers results in a decrease in arterial pressure, causing the artery walls to recoil.
• This cycle of expansion and recoil of artery walls is felt as the pulse.

Hence, the statement that pulse is felt due to the rhythmic contraction and relaxation of the aorta and main arteries is correct.

Additional Information

• The heart is a muscular organ that pumps blood through the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes.
• It consists of four chambers: two upper chambers called atria and two lower chambers called ventricles.
• The aorta is the largest artery in the body and is the primary artery from which the arterial system branches out.
• Arteries are blood vessels that carry blood away from the heart, and they have thick, elastic walls to withstand and accommodate the pressure of the ejected blood.
• The radial artery, located at the wrist, is one of the common sites for pulse measurement.

The correct answer is Varaha Cave.

Key PointsMamallapuram's Cave Temples

• Mamallapuram, also known as Mahabalipuram, is renowned for its rock-cut caves and intricately carved temples. It is located on the Coromandel Coast of the Bay of Bengal, in the state of Tamil Nadu, India.
• The Varaha Cave Temple is a notable example of Indian rock-cut architecture from the 7^th century. It is one of the finest testimonials to the ancient Vishwakarma Sthapathis (architects).
• This temple is dedicated to Lord Vishnu's incarnation as a Varaha (boar). The temple features exquisite carvings of mythological themes, including panels depicting Lord Vishnu as Varaha.
• The royal portraits found in the Varaha Cave are significant for their historical and artistic value. They are believed to portray King Simhavishnu and Mahendravarman I, Pallava kings who played pivotal roles in the development of the region.
• The artwork in the Varaha Cave Temple not only showcases the skill of the Pallava sculptors but also provides insight into the religious and cultural milieu of the time.

Hence, the statement that the royal portraits of Simhavishnu and Mahendravarman are found in the Varaha Cave Temple is correct.

Additional Information

• The Pallava Dynasty, ruling from the 3^rd century CE to the 9^th century CE, is known for its contribution to art, architecture, and poetry in South India. The dynasty's patronage of arts led to the creation of significant landmarks like the temples and sculptures in Mamallapuram.
• Mamallapuram is a UNESCO World Heritage Site, recognized for its rock-cut caves, monolithic temples (rathas), giant open-air reliefs (such as the Descent of the Ganges or Arjuna's Penance), and temple complexes like the Shore Temple.
• The Varaha Cave Temple, along with others in Mamallapuram, represents a critical phase in the architectural evolution that would influence later South Indian temple architecture.
• These monuments are significant not only for their historical value but also for their contributions to the study of ancient Indian art, culture, and religion. They reflect the religious harmony of the time, with temples dedicated to various deities, including Vishnu, Shiva, and Durga.

The correct answer is 1 and 2 only.

Key Points

• The Sugamya Bharat Abhiyan, also known as the Accessible India Campaign, is a program initiated by the Department of Empowerment of Persons with Disabilities, under the Ministry of Social Justice and Empowerment.
• It focuses on enhancing the accessibility of public buildings, transport, and information & communication technology (ICT) ecosystem for persons with disabilities. Hence, statement 1 is correct.
• The primary aim of this program is to build an inclusive society where persons with disabilities have equal access to opportunities and services, aligning with the principles of the Rights of Persons with Disabilities Act, 2016.
• This initiative works towards ensuring accessibility in public spaces, transportation systems, and information technology. Hence, statement 2 is correct.
• While the campaign focuses on creating a barrier-free environment, it does not directly deal with the provision of pensions for persons with disabilities.
• Pensions and financial assistance for persons with disabilities are managed through other schemes and policies by the government. Hence, statement 3 is incorrect.

Additional Information

• The Rights of Persons with Disabilities Act, 2016 is a significant piece of legislation in India that aims to secure and enhance the rights and entitlements of persons with disabilities.
• It includes provisions for accessibility, employment, education, social security, and legal capacity for persons with disabilities, highlighting the government's commitment to an inclusive society.
• The Department of Empowerment of Persons with Disabilities plays a crucial role in implementing the policies and schemes designed for the welfare of persons with disabilities, including the Sugamya Bharat Abhiyan.
• Its efforts are crucial for achieving the goals set under the United Nations Convention on the Rights of Persons with Disabilities (UNCRPD), to which India is a signatory.
• Accessibility and inclusivity initiatives like the Sugamya Bharat Abhiyan are essential for creating a society that accommodates all its members, including those with disabilities, ensuring they can participate fully in all aspects of life.

The correct answer is  Mg > Al > Zn > Fe.

Key PointsReactivity with HCI

• The reactivity of metals with hydrochloric acid (HCI) depends on their position in the reactivity series. The reactivity series is a list of metals arranged in order of decreasing reactivity.
• Magnesium (Mg) is more reactive than aluminum (Al), zinc (Zn), and iron (Fe) with HCI. This is because magnesium is higher up in the reactivity series.
• Aluminum (Al), though protected by an oxide layer, reacts with HCI once this layer is penetrated, making it more reactive than zinc and iron.
• Zinc (Zn) reacts with HCI to form zinc chloride (ZnCl₂) and hydrogen gas (H₂), but its reactivity is less than Mg and Al.
• Iron (Fe) is the least reactive among the given metals with HCI, reacting to form iron(II) chloride (FeCl₂) and hydrogen gas.

Additional Information

• The reactivity series is an essential concept in chemistry that predicts the outcome of reactions between metals and other substances. It helps in understanding which metal can displace another in a chemical reaction.
• Hydrochloric acid (HCI) is a strong acid that reacts with metals above hydrogen in the reactivity series to produce salt and hydrogen gas.
• The reaction of metals with HCI is an example of a single displacement reaction, where a more reactive metal displaces a less reactive metal from its compound.
• Understanding the reactivity of metals with acids like HCI is crucial in various applications, including metal extraction, corrosion prevention, and manufacturing of chemicals.
• The protective oxide layer on aluminum makes it less reactive initially, but once this layer is removed or penetrated, aluminum becomes quite reactive due to its relatively high position in the reactivity series.

The correct answer is proteins.

Key PointsThermal Denaturation of Proteins in Eggs

• The process of cooking eggs involves heating, which causes the transparent liquid portion around the yolk to turn solid and become turbid white. This transformation is a result of the thermal denaturation of proteins, specifically the egg white proteins such as ovalbumin.
• Thermal denaturation is a process where proteins lose their tertiary and secondary structure due to the application of heat, leading to the unfolding of the protein molecules.
• As the proteins unfold, they expose their hydrophobic regions to water, which causes them to aggregate and form a solid structure. This is what causes the egg whites to turn from liquid to solid.
• The primary protein in egg white, ovalbumin, constitutes about 54% of the protein content and is the main component responsible for the coagulation and whitening effect.
• Denaturation is not limited to the application of heat. It can also occur due to mechanical action, pH changes, or the presence of certain chemicals, but in the context of cooking eggs, heat is the primary factor.

Hence, statement 2 is correct.

Additional Information

• Proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues. They perform a vast array of functions within organisms, including catalyzing metabolic reactions, DNA replication, responding to stimuli, and transporting molecules from one location to another.
• Eggs are considered a complete protein source, meaning they provide all nine essential amino acids necessary for the human diet. This makes them an important food source globally.
• The denaturation of proteins is not only crucial in cooking but also in biological processes and the manufacturing of pharmaceuticals, where control of protein folding and structure is essential.
• Ovalbumin, along with other proteins like ovotransferrin and ovomucoid, contributes to the unique cooking properties of eggs, making them versatile ingredients in culinary arts.

The correct answer is 2.

Key PointsNamdev and His Contributions

• Namdev, a prominent Bhakti saint, played a significant role in shaping the Bhakti movement in India.
• He is known for his efforts in transmitting the Bhakti tradition from the southern part of India to the north, thereby creating a bridge between the two regions' spiritual cultures. Hence, statement 1 is correct.
• As a proponent of Bhakti, Namdev emphasized the importance of a personal and direct relationship with God, bypassing the need for rituals and caste distinctions.
• His teachings and poetry often spoke against caste discrimination, advocating for egalitarianism and universal brotherhood. Hence, statement 2 is correct.
• Contrary to the claim in the question, Namdev was not a follower of Kabir. In fact, it is believed that Kabir, who lived in the 15^th century, was influenced by Namdev's work. Namdev preceded Kabir, making it historically inaccurate to label him as a follower of Kabir. Hence, statement 3 is incorrect.
• Hence, two statements are correct.

Additional Information

• Namdev's poetry and devotional songs, known as Abhangas, are a significant part of Marathi and Sikh sacred literature.
• His works are included in the Guru Granth Sahib, the holy scripture of Sikhism.
• The Bhakti movement, to which Namdev contributed significantly, was a devotional trend that emphasized love and devotion to God as the path to salvation.
• This movement challenged the traditional caste system and rituals, promoting a more personal and direct approach to spirituality.
• Namdev's legacy is not just limited to his poetry but also extends to his impact on the cultural and religious life of India, promoting values of devotion, equality, and love beyond societal barriers.